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Nob Hill Elementary students present water-use audit, urge reuse and education
Summary
Students from Nob Hill Elementary told the San Marcos City Council on June 10 that campus water use is concentrated in handwashing, toilets and irrigation; their measurements found faucet flow, handwashing frequency and toilet leaks that point to savings and reuse opportunities.
Grayson Valdez, a Nob Hill Elementary student, told the San Marcos City Council on June 10 that the school’s class completed a 14‑week Water Resource Management Leadership program and audited how the campus uses water.
The classroom team measured faucet flow rates, timed handwashing, tested toilets for leaks, and mapped potable, reclaimed, wastewater and stormwater systems on and around campus. “We are here to tell you what we learned about water on our school campus,” Valdez said during the council presentation.
The students said their meter‑based data shows the campus uses about 387 billing units — about 289,476 gallons — of potable water per month, at a monthly cost they reported as $3,792. Students estimated that handwashing accounts for roughly 20% of potable water used in the building and that the school experiences about…
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